Mechanical Hearts

(discontinued) Eren is no longer alive; yet he breathes in his empty shell, in his already dead body. One day, a man came upon Levi's doorstep and he, with desperation, accepted the bargain so Eren could be saved. However, the outcome is far, far from what he had hoped... (au/ooc; riren: futuristic. contains heavy angst, so read at your own risk)